The Tower of the Swallow, published as The Tower of Swallows in the United States (Polish original title: Wieża Jaskółki) is the fourth novel in the Witcher Saga written by Polish fantasy writer Andrzej Sapkowski, first published in Poland in 1997. It is a sequel to the third Witcher novel Baptism of Fire and is followed by the final entry in the series, The Lady of the Lake.